APQM

6.35mm (1/4″) Microphone Jack Plate

Trade Price

£59.02

Per

1

Unit

EACH

Pack Quantity

APQM

Information

Accepts balanced or unbalanced electret microphones with 6.35mm (1/4″) jack plugs. Part of C-TEC’s patented ‘Outreach Plate’ audio input extension system (see key features section below for details). Compatible with C-TEC’s entire range of PDA102, 200E, Pro-Range and ML1 induction loop amplifiers. Can be connected to any third-party audio or induction loop amplifier using an APV 24V 250mA power supply.  Mounts on a 25mm standard UK single gang back box. The Outreach Plate audio input extension system comprises a range of wall, ceiling and desk mountable plates specifically designed to increase the audio input capability of any audio system. Covering the most common variants of audio connectors, they work by mixing the signals from various audio input sources into a single balanced line level input on a compatible amplifier. Each input plate features a built-in mixer, preamp, input level control and balanced output. Typically, up to 10 Outreach plates (any mix) can be daisy-chained to one balanced line level connection with cable lengths up to 100m easily achievable using standard two-pair audio cable (i. e. Belden 8723). Each plate requires four wires; two balanced line (Line/A +, Line/A –), one ground (GND) and one power connection (V+ = 12-32V DC). Most of C-TEC’s PDA Range induction loop amplifiers are fitted with an Outreach connection socket as standard. For audio systems that do not have an Outreach socket, straightforward network connection can be achieved using an ‘APV’ 24V 250mA DC regulated power supply and an ‘APXO’ 3 pin XLR balanced line output plate.

Technical Specifications

Power requirements

Supply volts: 12-32V regulated d.c.; Supply current: 12-15mA.

Controls

Adjust input level.

Input signal level

-50dBv (5mV mic)

Gain

55dB.

Level control

0dB to -46dB.

Input impedance

500

Phantom volts

8V/0V (link selectable)

Signal to noise ratio

Greater than 75dB.

THD + noise

Less than 0.02%

Product dimensions (mm)

W 85 x H 85 x 15 D mm. Mount on a standard 25mm single gang UK back box.

Construction & finish

Plastic.

IP Rating

IP20.

Weight

TBC.

Operating conditions/temperature

-5ºC to +40ºC. Max relative humidity: 95%.

Input – balanced line:

0.775Vrms (0dBu) + 6dB (overload).

Input impedance:

Greater than 10KΩ.

Output – balanced line:

0.775Vrms (0dBu) + 6dB (overload).

Output imedance:

Greater than 100KΩ.

Frequency response:

90Hz to 20kHz.

Insertion loss/gain

Less than plus/minus 0.2dB.

Insertion signal to noise ratio:

Greater than 79dB.

THD + noise:

Less than 0.1%

Document Links

Catalogue page

Datasheet